EP1276017A3 - Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same - Google Patents

Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same Download PDF

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Publication number
EP1276017A3
EP1276017A3 EP02015510A EP02015510A EP1276017A3 EP 1276017 A3 EP1276017 A3 EP 1276017A3 EP 02015510 A EP02015510 A EP 02015510A EP 02015510 A EP02015510 A EP 02015510A EP 1276017 A3 EP1276017 A3 EP 1276017A3
Authority
EP
European Patent Office
Prior art keywords
toner
mother particles
work function
same
toner mother
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02015510A
Other languages
German (de)
French (fr)
Other versions
EP1276017A2 (en
EP1276017B1 (en
Inventor
Nobuhiro Miyakawa
Takuya Kadota
Hidehiro Takano
Shinji Yasukawa
Masanao Kunugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2001210603A external-priority patent/JP3661780B2/en
Priority claimed from JP2001283183A external-priority patent/JP3698203B2/en
Priority claimed from JP2001283699A external-priority patent/JP3744829B2/en
Priority claimed from JP2001300084A external-priority patent/JP3714411B2/en
Priority claimed from JP2001301473A external-priority patent/JP3693106B2/en
Priority claimed from JP2001301472A external-priority patent/JP3693105B2/en
Priority claimed from JP2001300083A external-priority patent/JP2003107782A/en
Priority claimed from JP2001370939A external-priority patent/JP3744847B2/en
Priority claimed from JP2002057125A external-priority patent/JP3991199B2/en
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP1276017A2 publication Critical patent/EP1276017A2/en
Publication of EP1276017A3 publication Critical patent/EP1276017A3/en
Publication of EP1276017B1 publication Critical patent/EP1276017B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0819—Developers with toner particles characterised by the dimensions of the particles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706—Polymers of alkenyl-aromatic compounds
    • G03G9/08708—Copolymers of styrene
    • G03G9/08711—Copolymers of styrene with esters of acrylic or methacrylic acid
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08755—Polyesters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G03G9/09716—Inorganic compounds treated with organic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G03G9/09725—Silicon-oxides; Silicates

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

A non-magnetic single-component toner 8 of the present invention has toner mother particles 8a, and external additives 12 comprising: two hydrophobic silicas 13, 14 of which particle diameters are different from each other, i.e. a mean primary particle diameter of 7 nm to 12 nm and a mean primary particle diameter of 40 nm to 50 nm, and a hydrophobic rutile/anatase type titanium oxide 15 having a spindle shape of which major axial diameter is in a range from 0.02 nm to 0.10 nm and the ratio of the major axial diameter to the minor axial diameter is set to be 2 to 8, wherein the external additives 12 adhere to the toner mother particles 8a. By the hydrophobic silicas 13, 14 having work function smaller than the work function of the toner mother particles 8a, the negative charging property is imparted to the toner mother particles 8a and the fluidity is also insured. On the other hand, by mixing and using hydrophobic rutile/anatase type titanium oxide particles 15 having work function larger than or equal to the work function of the toner mother particles 8a together with the hydrophobic silicas 13, 14, the non-magnetic single-component toner 8 is prevented from excessively charged. Therefore, the amount of fog toner on non-image portions is reduced, the transfer efficiency is further improved, the charging property is further stabilized, and the production of reverse transfer toner is further inhibited.
EP02015510A 2001-07-11 2002-07-10 Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same Expired - Lifetime EP1276017B1 (en)

Applications Claiming Priority (20)

Application Number Priority Date Filing Date Title
JP2001210603 2001-07-11
JP2001210603A JP3661780B2 (en) 2001-07-11 2001-07-11 One-component non-magnetic toner and method for producing the same
JP2001283699 2001-09-18
JP2001283351 2001-09-18
JP2001283351 2001-09-18
JP2001283183 2001-09-18
JP2001283699A JP3744829B2 (en) 2001-09-18 2001-09-18 Negatively charged toner
JP2001283183A JP3698203B2 (en) 2001-09-18 2001-09-18 Negatively charged toner and method for producing the same
JP2001301473 2001-09-28
JP2001300083A JP2003107782A (en) 2001-09-28 2001-09-28 Negatively charged dry process toner
JP2001301472A JP3693105B2 (en) 2001-09-28 2001-09-28 Development method
JP2001301473A JP3693106B2 (en) 2001-09-28 2001-09-28 Image forming method
JP2001300084 2001-09-28
JP2001301472 2001-09-28
JP2001300083 2001-09-28
JP2001300084A JP3714411B2 (en) 2001-09-28 2001-09-28 Negatively charged dry toner
JP2001370939 2001-12-05
JP2001370939A JP3744847B2 (en) 2001-09-18 2001-12-05 Negatively charged toner, method for producing the same, and image forming apparatus using the negatively charged toner
JP2002057125A JP3991199B2 (en) 2002-03-04 2002-03-04 Negatively chargeable toner
JP2002057125 2002-03-04

Publications (3)

Publication Number Publication Date
EP1276017A2 EP1276017A2 (en) 2003-01-15
EP1276017A3 true EP1276017A3 (en) 2004-06-30
EP1276017B1 EP1276017B1 (en) 2006-06-14

Family

ID=27580552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015510A Expired - Lifetime EP1276017B1 (en) 2001-07-11 2002-07-10 Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same

Country Status (5)

Country Link
US (2) US6875550B2 (en)
EP (1) EP1276017B1 (en)
CN (1) CN1327299C (en)
AT (1) ATE330256T1 (en)
DE (1) DE60212264T2 (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4584478B2 (en) * 2001-03-19 2010-11-24 コダック株式会社 Image forming method
JP2004240407A (en) * 2003-01-08 2004-08-26 Seiko Epson Corp Image forming apparatus
CN100365511C (en) * 2003-01-17 2008-01-30 松下电器产业株式会社 Toner, process for producing the same, two-component developing agent and method of image formation
US7217486B2 (en) * 2003-01-17 2007-05-15 Seiko Epson Corporation Toner and image-forming apparatus using the toner
US7144666B2 (en) * 2003-02-24 2006-12-05 Samsung Electronics Co., Ltd. Toner used with electrophotography
KR100510140B1 (en) * 2003-05-17 2005-08-26 삼성전자주식회사 Nonmagnetic one-component toner for electrophotographic image forming apparatus
JP2004361694A (en) * 2003-06-05 2004-12-24 Fuji Xerox Co Ltd Transport belt and image forming apparatus using it
JP4292386B2 (en) * 2003-07-16 2009-07-08 セイコーエプソン株式会社 Negatively chargeable toner, method for producing the same, and full-color image forming apparatus using the negatively chargeable toner
JP4190985B2 (en) * 2003-09-08 2008-12-03 コニカミノルタビジネステクノロジーズ株式会社 Toner for developing electrostatic image and full-color image forming method
US7894026B2 (en) 2003-10-01 2011-02-22 Samsung Electronics Co., Ltd. Thin film transistor array panel and liquid crystal display including light shield
US20050095522A1 (en) * 2003-10-30 2005-05-05 Eastman Kodak Company Control of charge-to-mass of toner using silica blends
CN100355545C (en) * 2003-11-07 2007-12-19 常州市图纳墨粉技术有限公司 Preparation of electronic imaging ink powder and ink particle spheroidizing apparatus
JP3981135B2 (en) * 2004-01-13 2007-09-26 エルジー・ケム・リミテッド Non-magnetic one-component color toner and method for producing the same
JP4047823B2 (en) * 2004-03-03 2008-02-13 シャープ株式会社 toner
JP4337095B2 (en) * 2004-03-22 2009-09-30 セイコーエプソン株式会社 Toner and developing device using the toner
EP1584989B1 (en) * 2004-03-23 2011-09-21 Seiko Epson Corporation Use of a toner
US7566518B2 (en) * 2004-04-15 2009-07-28 Kao Corporation Toner for electrostatic image development
US7348120B2 (en) 2004-04-15 2008-03-25 Kao Corporation Toner for electrostatic image development
JP4654601B2 (en) * 2004-05-14 2011-03-23 富士ゼロックス株式会社 Resin particles and production method thereof, electrostatic charge developing toner and production method thereof, electrostatic charge image developer, and image forming method.
KR100601683B1 (en) * 2004-06-03 2006-07-14 삼성전자주식회사 Method for preparation of toner
JP4446342B2 (en) 2004-07-16 2010-04-07 株式会社リコー Image forming apparatus and toner
JP2006058359A (en) * 2004-08-17 2006-03-02 Seiko Epson Corp Nonmagnetic monocomponent negatively charged spherical toner and full color image forming apparatus using same
JP4138738B2 (en) * 2004-09-15 2008-08-27 花王株式会社 toner
JP4772416B2 (en) * 2004-11-01 2011-09-14 株式会社リコー Cleaning device, process cartridge, and image forming apparatus
CN1770041B (en) * 2004-11-01 2010-04-21 株式会社理光 Cleaning device, process cartridge, and image forming apparatus
WO2006078110A1 (en) * 2005-01-18 2006-07-27 Lg Chem, Ltd. Color toner for non-magnetic mono-component system for increasing printing quality and a method for preparing the same
JP4856974B2 (en) * 2005-02-22 2012-01-18 キヤノン株式会社 Charging device, process cartridge, and image forming apparatus
JP5116947B2 (en) * 2005-03-02 2013-01-09 株式会社沖データ Transfer device and image forming apparatus
JP2006251301A (en) * 2005-03-10 2006-09-21 Ricoh Co Ltd Developing device, process cartridge and image forming apparatus using the same, and toner
US20060222988A1 (en) * 2005-03-31 2006-10-05 Kyocera Mita Corporation Electrophotographic toner
KR100754174B1 (en) * 2005-05-16 2007-09-03 삼성전자주식회사 Electrophotographic image forming apparatus and developing method thereof
KR100683180B1 (en) * 2005-06-23 2007-02-15 삼성전자주식회사 Developing roller including carbone nanobube for electrophotographic device and method for fabricating the same
JP4018110B2 (en) * 2005-07-25 2007-12-05 株式会社アフィット Method for developing conductive particles
US20070065742A1 (en) * 2005-09-21 2007-03-22 Fuji Xerox Co., Ltd. Single-component magnetic developer, developing method and image-forming method
JP4313358B2 (en) * 2005-11-25 2009-08-12 シャープ株式会社 Charging device and image forming apparatus
EP1862861A3 (en) * 2006-05-29 2009-07-22 Konica Minolta Business Technologies, Inc. Electrostatic image developing toner
CN100412700C (en) * 2006-08-02 2008-08-20 周学良 Red powdered carbon for color copier and its preparing process
US7498197B2 (en) * 2006-09-13 2009-03-03 Delphi Technologies, Inc. Silica nanoparticles thermoset resin compositions
JP2008112068A (en) * 2006-10-31 2008-05-15 Ricoh Co Ltd Developing device, process cartridge, single component developer and image forming apparatus
JP2009036980A (en) * 2007-08-01 2009-02-19 Sharp Corp Toner, two-component developer and image forming apparatus
JP4610603B2 (en) 2007-12-28 2011-01-12 シャープ株式会社 Toner, two-component developer, developing device and image forming apparatus
US20100040969A1 (en) * 2008-08-12 2010-02-18 Ligia Aura Bejat Toner Formulations with Tribocharge Control and Stability
KR101110273B1 (en) * 2008-09-05 2012-02-13 (주)석경에이티 A making method for Titania nanoparticle
US8290409B2 (en) * 2009-03-31 2012-10-16 Eastman Kodak Company Developer station for an electrographic printer having reduced developer agitation
US8121523B2 (en) * 2009-03-31 2012-02-21 Eastman Kodak Company Developer station with tapered auger system
US20100247154A1 (en) * 2009-03-31 2010-09-30 Stelter Eric C Developer station with auger system
US8219009B2 (en) * 2009-03-31 2012-07-10 Eastman Kodak Company Developer station and method for an electrographic printer with magnetically enabled developer removal
CN101968618B (en) * 2010-09-28 2012-05-09 珠海思美亚碳粉有限公司 Method for regenerating carbon powder for electrophototgraphic imaging device
CN102053516A (en) * 2010-11-01 2011-05-11 广州市科密化学有限公司 Preparation method of dry-type nonmagnetic single-component positive electricity carbon powder for laser printer
US10606181B2 (en) 2013-12-27 2020-03-31 Lexmark International, Inc. Toner compositions including silica blends and method to make the same
US9217939B2 (en) 2014-02-14 2015-12-22 Lexmark International, Inc. Toner formulations having improved toner usage efficiency and method to make the same
CN105116697A (en) * 2014-09-11 2015-12-02 天津市中环天佳电子有限公司 Nonmagnetic negative electricity laser printer ink powder
CN104698779A (en) * 2015-02-13 2015-06-10 珠海思美亚碳粉有限公司 Nonmagnetic toner and preparation method thereof
JP2018045112A (en) * 2016-09-15 2018-03-22 コニカミノルタ株式会社 Toner for electrostatic charge image development
JP7166899B2 (en) * 2018-12-03 2022-11-08 キヤノン株式会社 white toner
JP7480538B2 (en) * 2020-03-16 2024-05-10 京セラドキュメントソリューションズ株式会社 toner

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779926A (en) * 1965-04-13 1973-12-18 Scm Corp Toners and process for preparing same
JPH03220563A (en) * 1990-01-26 1991-09-27 Fuji Xerox Co Ltd Toner composite
US5620823A (en) * 1994-11-30 1997-04-15 Kabushiki Kaisha Toshiba Developing agent for electrophotography and developing method
US5776646A (en) * 1996-06-21 1998-07-07 Minolta Co., Ltd. Negatively chargeable toner with specified fine particles added externally
US5824442A (en) * 1994-11-08 1998-10-20 Canon Kabushiki Kaisha Developing method, image forming method, and heat fixing method, with toner
JPH11282240A (en) * 1998-03-30 1999-10-15 Brother Ind Ltd Image forming device
US6004711A (en) * 1999-02-03 1999-12-21 Lexmark International, Inc. Toner composition including positive and negative tribocharging hydrophobic extra-particulate additives
US6130020A (en) * 1997-12-12 2000-10-10 Minolta Co., Ltd. Developing agent
JP2000347518A (en) * 1999-06-04 2000-12-15 Ricoh Co Ltd Image forming device
US6197469B1 (en) * 1998-12-16 2001-03-06 Degussa-Huels Aktiengesellschaft Toners and/or toner mixtures
US6203955B1 (en) * 2000-04-28 2001-03-20 Toshiba Tec Kabushiki Kaisha Developing agent and image forming apparatus
JP2001083732A (en) * 1999-09-09 2001-03-30 Toshiba Tec Corp Toner for developer, developer, production of toner for developer, and production of developer

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824442A (en) * 1971-07-23 1974-07-16 Westinghouse Brake & Signal Inverter circuits
JP2931617B2 (en) 1990-03-19 1999-08-09 株式会社日本触媒 Electrophotographic developer
JPH0470847A (en) 1990-07-12 1992-03-05 Ricoh Co Ltd Toner for electrophotography
JP2726154B2 (en) * 1990-11-30 1998-03-11 三田工業株式会社 Magnetic developer for electrophotography
US5202209A (en) * 1991-10-25 1993-04-13 Xerox Corporation Toner and developer compositions with surface additives
JP2985535B2 (en) 1992-10-02 1999-12-06 東洋インキ製造株式会社 Negatively chargeable magnetic one-component toner
JP3219330B2 (en) 1993-01-12 2001-10-15 株式会社リコー Development method
JP3410175B2 (en) 1993-10-20 2003-05-26 日本ゼオン株式会社 Non-magnetic one-component developer
DE4419234A1 (en) * 1994-06-01 1995-12-07 Wacker Chemie Gmbh Process for the silylation of inorganic oxides
IT1288686B1 (en) * 1996-11-07 1998-09-23 Ws Spa FURTHER IMPROVED VACUUM CLEANER EQUIPMENT WITH AT LEAST THREE STAGES OF COLLECTION OF THE TYPE WITH PATH PARTIALLY SUBMERSIBLE IN
JPH11119463A (en) 1997-08-04 1999-04-30 Ricoh Co Ltd Electrostatic charge image developing toner and image forming method
JP3587671B2 (en) 1997-12-12 2004-11-10 コニカミノルタビジネステクノロジーズ株式会社 Electrophotographic developer
JP3383765B2 (en) 1998-02-12 2003-03-04 株式会社巴川製紙所 Non-magnetic one-component developing toner
JP3652113B2 (en) 1998-05-21 2005-05-25 キヤノン株式会社 Toner and image forming method
JP2000019813A (en) 1998-07-06 2000-01-21 Canon Inc Image forming method
JP2000037518A (en) * 1998-07-21 2000-02-08 Sankyo Kk Pinball machine
US6214507B1 (en) * 1998-08-11 2001-04-10 Xerox Corporation Toner compositions
JP2000128534A (en) 1998-10-20 2000-05-09 Titan Kogyo Kk Hydrophobic rutile type titanium oxide and its production and application
JP4244430B2 (en) 1999-03-15 2009-03-25 パナソニック株式会社 toner
JP2000321867A (en) 1999-05-10 2000-11-24 Ricoh Co Ltd Two-component developer, production thereof, and device and method for image formation
EP1074890B1 (en) * 1999-08-02 2008-08-20 Canon Kabushiki Kaisha Toner and process for producing a toner, image forming method
US6605402B2 (en) * 2001-08-21 2003-08-12 Aetas Technology, Incorporated Method of using variably sized coating particles in a mono component developing system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779926A (en) * 1965-04-13 1973-12-18 Scm Corp Toners and process for preparing same
JPH03220563A (en) * 1990-01-26 1991-09-27 Fuji Xerox Co Ltd Toner composite
US5824442A (en) * 1994-11-08 1998-10-20 Canon Kabushiki Kaisha Developing method, image forming method, and heat fixing method, with toner
US5620823A (en) * 1994-11-30 1997-04-15 Kabushiki Kaisha Toshiba Developing agent for electrophotography and developing method
US5776646A (en) * 1996-06-21 1998-07-07 Minolta Co., Ltd. Negatively chargeable toner with specified fine particles added externally
US6130020A (en) * 1997-12-12 2000-10-10 Minolta Co., Ltd. Developing agent
JPH11282240A (en) * 1998-03-30 1999-10-15 Brother Ind Ltd Image forming device
US6197469B1 (en) * 1998-12-16 2001-03-06 Degussa-Huels Aktiengesellschaft Toners and/or toner mixtures
US6004711A (en) * 1999-02-03 1999-12-21 Lexmark International, Inc. Toner composition including positive and negative tribocharging hydrophobic extra-particulate additives
JP2000347518A (en) * 1999-06-04 2000-12-15 Ricoh Co Ltd Image forming device
JP2001083732A (en) * 1999-09-09 2001-03-30 Toshiba Tec Corp Toner for developer, developer, production of toner for developer, and production of developer
US6203955B1 (en) * 2000-04-28 2001-03-20 Toshiba Tec Kabushiki Kaisha Developing agent and image forming apparatus

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199145, Derwent World Patents Index; Class A12, AN 1991-329419, XP002266353 *
DATABASE WPI Section Ch Week 200001, Derwent World Patents Index; Class G06, AN 2000-003726, XP002278418 *
DATABASE WPI Section Ch Week 200135, Derwent World Patents Index; Class A06, AN 2001-331131, XP002278419 *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10) *

Also Published As

Publication number Publication date
US20030157419A1 (en) 2003-08-21
DE60212264T2 (en) 2007-04-26
DE60212264D1 (en) 2006-07-27
EP1276017A2 (en) 2003-01-15
US6994942B2 (en) 2006-02-07
ATE330256T1 (en) 2006-07-15
US20040234881A1 (en) 2004-11-25
CN1420393A (en) 2003-05-28
CN1327299C (en) 2007-07-18
US6875550B2 (en) 2005-04-05
EP1276017B1 (en) 2006-06-14

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